20380763 has 12 divisors (see below), whose sum is σ = 22333584. Its totient is φ = 18488400.

The previous prime is 20380721. The next prime is 20380769. The reversal of 20380763 is 36708302.

It is not a de Polignac number, because 20380763 - 2⁶ = 20380699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20380769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65378 + ... + 65688.

It is an arithmetic number, because the mean of its divisors is an integer number (1861132).

Almost surely, 2^20380763 is an apocalyptic number.

20380763 is a deficient number, since it is larger than the sum of its proper divisors (1952821).

20380763 is an equidigital number, since it uses as much as digits as its factorization.

20380763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20380763 is about 4514.5058422822. The cubic root of 20380763 is about 273.1535272268.

The spelling of 20380763 in words is "twenty million, three hundred eighty thousand, seven hundred sixty-three".